Nginx 502 Bad Gateway: What It Means and How to Fix It
You refresh your page and see it: 502 Bad Gateway. Nginx is telling you something went wrong, but what? This guide covers the most common causes and how to fix each one. What 502 Bad Gateway Actually Means A 502 error means Nginx (acting as a reverse proxy) tried to contact your upstream server (your app) and either: Couldn’t connect at all Got an invalid response The connection timed out Nginx is working fine. Your upstream is the problem. ...